ACELETE Auto-Start 2.0 Power Ball with Counter Digital LCD Wrist Trainer Ball Forearm Exerciser Wrist Strengthener Workout Toy Spinner Gyro Ball with LED Lights

?Use our self-starting wrist ball, As the speed of the gyro increases, the centrifugal force also increases, and the reaction force on the wrist increases,we can enjoy muscle training freely in anytime, anywhere. ? How to use counter 2.0: ON/CLR: (1)Press the power button to enable blacklight;Backlight turns off when spinning and turns on when it's stopped. (2)Press the button twice to delete all the records. (3)Press and hold the button to shut down quickly. Real-time RPM: It display highest rpm this time;or displays the previous highest value if the value is less in second time. Real-time Force: It display highest force when stops;or displays the previous highest value if the value is less in second time. Total time: Time adds up from first use. Calorie Calculator: Total value 1000 calories,adds up after each use until 1000 calories. ?Application range of gyro ball: Muscle training from wrist to elbow: fingers, wrists, forearms, upper arms, biceps, triceps and shoulders, improve arm strength and flexibility, prevent tendonitis. Suitable for the elderly, nursing, treatment, rehabilitation personnel: In fact, gyro ball does not put too much load on the muscles, improves blood circulation in the fingers and prevents nerve damage.